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A Brief History of Wireless Telegraphy

Milestones in the Evolution of a New Art

By R. A. Fessenden

An Electric Barometer

Utilizing Waste Wood

Destructive Distillation; The Recovery of Turpentine and other Products

By F. P. Veitch

Apparent Decay of Radium

By William Ramsay

Some Problems of the Motor Car

What the Inventor Can do for the Automobile

Two Interesting Siphon Experiments

A 50,000-Volt Transmission System

The Largest Hydro-Electric Plant in Switzerland

By Frank C. Perkins

Tests on Reinforced Concrete Beams

Remote-Control By Electric Waves

Matter and Ether

Two Physical Conceptions Simply Explained

By L. De Launay

Effect of Electricity on the Blood

By Leopold Loehner

Oils as Dust Preventives

How they are Applied

By Prevost Hubbard

Hardening Hydraulic Cements

A Description of a New Process

By W. Michaelis

Engineering Notes

Trade Notes and Formulæ


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